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4 years agoRevert "[bindings/go] Add Go bindings for CalledValue"
Ayke van Laethem [Sat, 8 Jun 2019 22:17:51 +0000 (22:17 +0000)]
Revert "[bindings/go] Add Go bindings for CalledValue"

This reverts commit f675a60ca7a93f22e22dd4209504a9846dd04630.
The commit had the wrong title/description. Sorry about the mess!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362892 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[bindings/go] Add Go bindings for CalledValue
Ayke van Laethem [Sat, 8 Jun 2019 22:15:38 +0000 (22:15 +0000)]
[bindings/go] Add Go bindings for CalledValue

This is very useful for inspecting generated IR, there appears to be no
other way to get the called function from a CallInst.

Differential Revision: https://reviews.llvm.org/D52972

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362891 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[bindings/go] Add Go bindings for CalledValue
Ayke van Laethem [Sat, 8 Jun 2019 22:08:52 +0000 (22:08 +0000)]
[bindings/go] Add Go bindings for CalledValue

This is very useful for inspecting generated IR, there appears to be no
other way to get the called function from a CallInst.

Revision: https://reviews.llvm.org/D52972

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362890 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[bindings/go] Add EraseFromParent
Ayke van Laethem [Sat, 8 Jun 2019 22:00:19 +0000 (22:00 +0000)]
[bindings/go] Add EraseFromParent

After using ReplaceAllUsesWith on an instruction, it may be necessary to
erase it even though it is dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362889 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Test commit
Ayke van Laethem [Sat, 8 Jun 2019 21:42:00 +0000 (21:42 +0000)]
[NFC] Test commit

Add a newline, which is missing according to go fmt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362888 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[X86][Codegen] Add missed pattern that may be a lea+neg
Roman Lebedev [Sat, 8 Jun 2019 19:38:14 +0000 (19:38 +0000)]
[X86][Codegen] Add missed pattern that may be a lea+neg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362886 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DAGCombine] visitAND - merge (zext_inreg ((s)extload x)) -> (zextload x) combines...
Simon Pilgrim [Sat, 8 Jun 2019 17:02:00 +0000 (17:02 +0000)]
[DAGCombine] visitAND - merge (zext_inreg ((s)extload x)) -> (zextload x) combines. NFCI.

Same codegen, only differ by the oneuse limit for the sextload case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362880 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[InstSimplify] enhance fcmp fold with never-nan operand
Sanjay Patel [Sat, 8 Jun 2019 15:12:33 +0000 (15:12 +0000)]
[InstSimplify] enhance fcmp fold with never-nan operand

This is 1 step towards correcting our usage of fast-math-flags when applied on an fcmp.
In this case, we are checking for 'nnan' on the fcmp itself rather than the operand of
the fcmp. But I'm leaving that clause in until we're more confident that we can stop
relying on fcmp's FMF.

By using the more general "isKnownNeverNaN()", we gain a simplification shown on the
tests with 'uitofp' regardless of the FMF on the fcmp (uitofp never produces a NaN).
On the tests with 'fabs', we are now relying on the FMF for the call fabs instruction
in addition to the FMF on the fcmp.

I'll update the 'ult' case below here as a follow-up assuming no problems here.

Differential Revision: https://reviews.llvm.org/D62979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362879 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agofix a typo unavaliable=>unavailable
Sylvestre Ledru [Sat, 8 Jun 2019 15:07:55 +0000 (15:07 +0000)]
fix a typo unavaliable=>unavailable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362878 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Added tests for D63038
David Bolvansky [Sat, 8 Jun 2019 12:07:59 +0000 (12:07 +0000)]
[NFC] Added tests for D63038

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362875 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Adjust isLegalT1AddressImmediate for non-legal types
David Green [Sat, 8 Jun 2019 10:32:53 +0000 (10:32 +0000)]
[ARM] Adjust isLegalT1AddressImmediate for non-legal types

Types such as float and i64's do not have legal loads in Thumb1, but will still
be loaded with a LDR (or potentially multiple LDR's). As such we can treat the
cost of addressing mode calculations the same as an i32 and get some optimisation
benefits.

Differential Revision: https://reviews.llvm.org/D62968

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362874 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Add MVE addressing to isLegalT2AddressImmediate
David Green [Sat, 8 Jun 2019 10:18:23 +0000 (10:18 +0000)]
[ARM] Add MVE addressing to isLegalT2AddressImmediate

Now with MVE being added, we can add the vector addressing mode costs for it.
These are generally imm7 multiplied by the size of the type being loaded /
stored.

Differential Revision: https://reviews.llvm.org/D62967

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362873 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Add fp16 addressing to isLegalT2AddressImmediate
David Green [Sat, 8 Jun 2019 10:09:02 +0000 (10:09 +0000)]
[ARM] Add fp16 addressing to isLegalT2AddressImmediate

The fp16 version of VLDR takes a imm8 multiplied by 2. This updates the costs
to account for those, and adds extra testing. It is dependant upon hasFPRegs16
as this is what the load/store instructions require.

Differential Revision: https://reviews.llvm.org/D62966

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362872 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Add extra gep costmodel tests for MVE and half float. NFC
David Green [Sat, 8 Jun 2019 09:58:05 +0000 (09:58 +0000)]
[ARM] Add extra gep costmodel tests for MVE and half float. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362871 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Add HasNEON for all Neon patterns in ARMInstrNEON.td. NFCI
David Green [Sat, 8 Jun 2019 09:36:49 +0000 (09:36 +0000)]
[ARM] Add HasNEON for all Neon patterns in ARMInstrNEON.td. NFCI

We are starting to add an entirely separate vector architecture to the ARM
backend. To do that we need at least some separation between the existing NEON
and the new MVE code. This patch just goes through the Neon patterns and
ensures that they are predicated on HasNEON, giving MVE a stable place to start
from.

No tests yet as this is largely an NFC, and we don't have the other target that
will treat any of these intructions as legal.

Differential Revision: https://reviews.llvm.org/D62945

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362870 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[SystemZ] Fix CMakeLists.txt for alphabetical order (NFC).
Jonas Paulsson [Sat, 8 Jun 2019 06:42:02 +0000 (06:42 +0000)]
[SystemZ]  Fix CMakeLists.txt for alphabetical order (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362869 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[SystemZ, RegAlloc] Favor 3-address instructions during instruction selection.
Jonas Paulsson [Sat, 8 Jun 2019 06:19:15 +0000 (06:19 +0000)]
[SystemZ, RegAlloc]  Favor 3-address instructions during instruction selection.

This patch aims to reduce spilling and register moves by using the 3-address
versions of instructions per default instead of the 2-address equivalent
ones. It seems that both spilling and register moves are improved noticeably
generally.

Regalloc hints are passed to increase conversions to 2-address instructions
which are done in SystemZShortenInst.cpp (after regalloc).

Since the SystemZ reg/mem instructions are 2-address (dst and lhs regs are
the same), foldMemoryOperandImpl() can no longer trivially fold a spilled
source register since the reg/reg instruction is now 3-address. In order to
remedy this, new 3-address pseudo memory instructions are used to perform the
folding only when the dst and lhs virtual registers are known to be allocated
to the same physreg. In order to not let MachineCopyPropagation run and
change registers on these transformed instructions (making it 3-address), a
new target pass called SystemZPostRewrite.cpp is run just after
VirtRegRewriter, that immediately lowers the pseudo to a target instruction.

If it would have been possibe to insert a COPY instruction and change a
register operand (convert to 2-address) in foldMemoryOperandImpl() while
trusting that the caller (e.g. InlineSpiller) would update/repair the
involved LiveIntervals, the solution involving pseudo instructions would not
have been needed. This is perhaps a potential improvement (see Phabricator
post).

Common code changes:

* A new hook TargetPassConfig::addPostRewrite() is utilized to be able to run a
target pass immediately before MachineCopyPropagation.

* VirtRegMap is passed as an argument to foldMemoryOperand().

Review: Ulrich Weigand, Quentin Colombet
https://reviews.llvm.org/D60888

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362868 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agogn build: Merge r362857
Nico Weber [Sat, 8 Jun 2019 01:27:47 +0000 (01:27 +0000)]
gn build: Merge r362857

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362864 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objcopy][MachO] Recompute and update offset/size fields in the writer
Seiya Nuta [Sat, 8 Jun 2019 01:22:54 +0000 (01:22 +0000)]
[llvm-objcopy][MachO] Recompute and update offset/size fields in the writer

Summary:
Recompute and update offset/size fields so that we can implement llvm-objcopy options like --only-section.

This patch is the first step and focuses on supporting load commands that covered by existing tests: executable files and
dynamic libraries are not supported.

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap, rupprecht

Subscribers: compnerd, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62652

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362863 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoVisualizer for APInt and remove obsolete visualizer
Mike Spertus [Sat, 8 Jun 2019 00:23:08 +0000 (00:23 +0000)]
Visualizer for APInt and remove obsolete visualizer

Visualizer for the simple case of APInt (uints < 2^64)
as will be required  for Clang ConstantArrayType visualizer.
Also, removed obsolete VS2013 SmallVectorVisualizer as VS2013
is no longer supported.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362860 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoFactor out SelectionDAG's switch analysis and lowering into a separate component.
Amara Emerson [Sat, 8 Jun 2019 00:05:17 +0000 (00:05 +0000)]
Factor out SelectionDAG's switch analysis and lowering into a separate component.

In order for GlobalISel to re-use the significant amount of analysis and
optimization code in SDAG's switch lowering, we first have to extract it and
create an interface to be used by both frameworks.

No test changes as it's NFC.

Differential Revision: https://reviews.llvm.org/D62745

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362857 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoLoopDistribute: Add testcase where SCEV wants to insert a runtime
Matt Arsenault [Fri, 7 Jun 2019 23:17:38 +0000 (23:17 +0000)]
LoopDistribute: Add testcase where SCEV wants to insert a runtime
check.

Only the memory based checks were being tested. Prepare for fix in
convergent handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362854 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[GVN] non-functional code movement
Keno Fischer [Fri, 7 Jun 2019 23:08:38 +0000 (23:08 +0000)]
[GVN] non-functional code movement

Summary: Move some code around, in preparation for later fixes
to the non-integral addrspace handling (D59661)

Patch By Jameson Nash <jameson@juliacomputing.com>

Reviewed By: reames, loladiro
Differential Revision: https://reviews.llvm.org/D59729

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362853 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAMDGPU: Force skips around traps
Matt Arsenault [Fri, 7 Jun 2019 23:02:52 +0000 (23:02 +0000)]
AMDGPU: Force skips around traps

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362852 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[COFF] Fix /export:foo=bar when bar is a weak alias
Reid Kleckner [Fri, 7 Jun 2019 22:05:12 +0000 (22:05 +0000)]
[COFF] Fix /export:foo=bar when bar is a weak alias

Summary:
When handling exports from the command line or from .def files, the
linker does a "fuzzy" string lookup to allow finding mangled symbols.
However, when the symbol is re-exported under a new name, the linker has
to transfer the decorations from the exported symbol over to the new
name. This is implemented by taking the mangled symbol that was found in
the object and replacing the original symbol name with the export name.

Before this patch, LLD implemented the fuzzy search by adding an
undefined symbol with the unmangled name, and then during symbol
resolution, checking if similar mangled symbols had been added after the
last round of symbol resolution. If so, LLD makes the original symbol a
weak alias of the mangled symbol. Later, to get the original symbol
name, LLD would look through the weak alias and forward it on to the
import library writer, which copies the symbol decorations. This
approach doesn't work when bar is itself a weak alias, as is the case in
asan. It's especially bad when the aliasee of bar contains the string
"bar", consider "bar_default". In this case, we would end up exporting
the symbol "foo_default" when we should've exported just "foo".

To fix this, don't look through weak aliases to find the mangled name.
Save the mangled name earlier during fuzzy symbol lookup.

Fixes PR42074

Reviewers: mstorsjo, ruiu

Subscribers: thakis, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62984

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362849 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-lipo] Add docs for llvm-lipo
Alexander Shaposhnikov [Fri, 7 Jun 2019 22:03:02 +0000 (22:03 +0000)]
[llvm-lipo] Add docs for llvm-lipo

Add docs (llvm-lipo.rst) for llvm-lipo.

Test plan:
make -j8 sphinx
check that ./docs/html/CommandGuide/llvm-lipo.html is built correctly and looks okay.

Differential revision: https://reviews.llvm.org/D62706

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362848 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objdump] Fix Bugzilla ID 41862 to support checking addresses of disassembled...
Jordan Rupprecht [Fri, 7 Jun 2019 21:49:26 +0000 (21:49 +0000)]
[llvm-objdump] Fix Bugzilla ID 41862 to support checking addresses of disassembled object

Summary:
This fixes the bugzilla id,41862 to support dealing with checking
stop address against start address to support this not being a
proper object to check the disasembly against like gnu objdump
currently does.

Reviewers: jakehehrlich, rupprecht, echristo, jhenderson, grimar

Reviewed By: jhenderson

Subscribers: MaskRay, smeenai, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61969

Patch by Nicholas Krause!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362847 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoFix string literals to avoid deprecation warnings in regexp patterns
Adrian McCarthy [Fri, 7 Jun 2019 21:14:33 +0000 (21:14 +0000)]
Fix string literals to avoid deprecation warnings in regexp patterns

In LLDB, where tests run with the debug version of Python, we get a
series of deprecation warnings because escape sequences like `\(` are
being treated as part of the string literal rather than an escape for
the regexp pattern.

NFC intended.

Differential Revision: https://reviews.llvm.org/D62882

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362846 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-lipo] Drop unneeded braces. NFC
Shoaib Meenai [Fri, 7 Jun 2019 20:52:17 +0000 (20:52 +0000)]
[llvm-lipo] Drop unneeded braces. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362841 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-lipo] Implement -archs
Shoaib Meenai [Fri, 7 Jun 2019 20:47:58 +0000 (20:47 +0000)]
[llvm-lipo] Implement -archs

Displays the architecture names of an input file.
Unknown architectures are represented by unknown(cputype,cpusubtype).

Patch by Anusha Basana <anusha.basana@gmail.com>

Differential Revision: https://reviews.llvm.org/D62753

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362840 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DomTreeUpdater] Add all insert before all delete updates to reduce compile time.
Alina Sbirlea [Fri, 7 Jun 2019 20:43:55 +0000 (20:43 +0000)]
[DomTreeUpdater] Add all insert before all delete updates to reduce compile time.

Summary:
The cleanup in D62751 introduced a compile-time regression due to the way DT updates are performed.
Add all insert edges then all delete edges in DTU to match the previous compile time.
Compile time on the test provided by @mstorsjo before and after this patch on my machine:
113.046s vs 35.649s
Repro: clang -target x86_64-w64-mingw32 -c -O3 glew-preproc.c; on https://martin.st/temp/glew-preproc.c.

Reviewers: kuhar, NutshellySima, mstorsjo

Subscribers: jlebar, mstorsjo, dmgreen, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62981

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362839 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol
Michael Pozulp [Fri, 7 Jun 2019 20:34:31 +0000 (20:34 +0000)]
[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol

Summary:
Fixes Bug 41904 https://bugs.llvm.org/show_bug.cgi?id=41904

Re-land r362768 after it was reverted in r362826.

Reviewers: jhenderson, rupprecht, grimar, MaskRay

Reviewed By: jhenderson, rupprecht, MaskRay

Subscribers: dexonsmith, rupprecht, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62275

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362838 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[X86] Remove unnecessary new line escape from the end of a macro. NFC
Craig Topper [Fri, 7 Jun 2019 20:30:40 +0000 (20:30 +0000)]
[X86] Remove unnecessary new line escape from the end of a macro. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362837 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ADT] Enable set_difference() to be used on StringSet
Michael Pozulp [Fri, 7 Jun 2019 20:23:03 +0000 (20:23 +0000)]
[ADT] Enable set_difference() to be used on StringSet

Summary: Re-land r362766 after it was reverted in r362823.

Reviewers: jhenderson, dsanders, aaron.ballman, MatzeB, lhames, dblaikie

Reviewed By: dblaikie

Subscribers: smeenai, mgrang, mgorny, dexonsmith, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62369

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362835 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen
Volkan Keles [Fri, 7 Jun 2019 20:19:27 +0000 (20:19 +0000)]
[GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen

Summary:
Translate `llvm.assume`, `llvm.var.annotation` and `llvm.sideeffect` to nothing
as they have no effect on CodeGen.

Reviewers: qcolombet, aditya_nandakumar, dsanders, paquette, aemerson, arsenm

Reviewed By: arsenm

Subscribers: hiraditya, wdng, rovka, kristof.beyls, javed.absar, Petar.Avramovic, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63022

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362834 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[APFloat] APFloat::Storage::Storage - refix use after move
Nick Desaulniers [Fri, 7 Jun 2019 19:51:22 +0000 (19:51 +0000)]
[APFloat] APFloat::Storage::Storage - refix use after move

Summary:
Re-land r360675 after it was reverted in r360770.

This was reported in:
https://llvm.org/reports/scan-build/

Based on feedback in:
https://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20190513/652286.html

Reviewers: RKSimon, efriedma

Reviewed By: RKSimon, efriedma

Subscribers: eli.friedman, hiraditya, llvm-commits, srhines

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62767

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362833 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ORC] Update symbol lookup to use a single callback with a required symbol state
Lang Hames [Fri, 7 Jun 2019 19:33:51 +0000 (19:33 +0000)]
[ORC] Update symbol lookup to use a single callback with a required symbol state
rather than two callbacks.

The asynchronous lookup API (which the synchronous lookup API wraps for
convenience) used to take two callbacks: OnResolved (called once all requested
symbols had an address assigned) and OnReady to be called once all requested
symbols were safe to access). This patch updates the asynchronous lookup API to
take a single 'OnComplete' callback and a required state (SymbolState) to
determine when the callback should be made. This simplifies the common use case
(where the client is interested in a specific state) and will generalize neatly
as new states are introduced to track runtime initialization of symbols.

Clients who were making use of both callbacks in a single query will now need to
issue two queries (one for SymbolState::Resolved and another for
SymbolState::Ready). Synchronous lookup API clients who were explicitly passing
the WaitOnReady argument will now need neeed to pass a SymbolState instead (for
'WaitOnReady == true' use SymbolState::Ready, for 'WaitOnReady == false' use
SymbolState::Resolved). Synchronous lookup API clients who were using default
arugment values should see no change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362832 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[IR] Add UnaryOperator::CreateFNegFMF(...)
Cameron McInally [Fri, 7 Jun 2019 18:59:51 +0000 (18:59 +0000)]
[IR] Add UnaryOperator::CreateFNegFMF(...)

Differential Revision: https://reviews.llvm.org/D62705

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362828 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoUnbreak 32-bit build.
Peter Collingbourne [Fri, 7 Jun 2019 18:57:32 +0000 (18:57 +0000)]
Unbreak 32-bit build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362827 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoRevert "[llvm-objdump] Add warning if --disassemble-functions specifies an unknown...
Vlad Tsyrklevich [Fri, 7 Jun 2019 18:55:12 +0000 (18:55 +0000)]
Revert "[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol"

This reverts commit 50f61af3f304a03f10d9ecb0828829f0a72d0099, it used
the function introduced in the previous revert of
0bddef79019a23ab14fcdb27028e55e484674c88.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362826 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DAGCombine] visitAND - fix local shadow variable warnings. NFCI.
Simon Pilgrim [Fri, 7 Jun 2019 18:36:43 +0000 (18:36 +0000)]
[DAGCombine] visitAND - fix local shadow variable warnings. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362825 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoRevert "[ADT] Enable set_difference() to be used on StringSet"
Vlad Tsyrklevich [Fri, 7 Jun 2019 18:34:29 +0000 (18:34 +0000)]
Revert "[ADT] Enable set_difference() to be used on StringSet"

This reverts commit 0bddef79019a23ab14fcdb27028e55e484674c88, it was
causing ASan failures on the sanitizer bots:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/32800

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362823 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoFix -Wunused-lambda-capture warning. NFCI.
Simon Pilgrim [Fri, 7 Jun 2019 18:20:09 +0000 (18:20 +0000)]
Fix -Wunused-lambda-capture warning. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362822 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DAGCombine] Use APInt::extractBits in "sub-splat" constant mask detection. NFCI.
Simon Pilgrim [Fri, 7 Jun 2019 18:07:06 +0000 (18:07 +0000)]
[DAGCombine] Use APInt::extractBits in "sub-splat" constant mask detection. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362820 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agollvm-objcopy: Implement --extract-partition and --extract-main-partition.
Peter Collingbourne [Fri, 7 Jun 2019 17:57:48 +0000 (17:57 +0000)]
llvm-objcopy: Implement --extract-partition and --extract-main-partition.

This implements the functionality described in
https://lld.llvm.org/Partitions.html. It works as follows:

- Reads the section headers using the ELF header at file offset 0;
- If extracting a loadable partition:
  - Finds the section containing the required partition ELF header by looking it up in the section table;
  - Reads the ELF and program headers from the section.
- If extracting the main partition:
  - Reads the ELF and program headers from file offset 0.
- Filters the section table according to which sections are in the program headers that it read:
  - If ParentSegment != nullptr or section is not SHF_ALLOC, then it goes in.
  - Sections containing partition ELF headers or program headers are excluded as there are no headers for these in ordinary ELF files.

Differential Revision: https://reviews.llvm.org/D62364

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362818 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAMDGPU: Fix MIR test verifier error
Matt Arsenault [Fri, 7 Jun 2019 17:55:07 +0000 (17:55 +0000)]
AMDGPU: Fix MIR test verifier error

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362817 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[dsymutil] Use the number of threads specified.
Jonas Devlieghere [Fri, 7 Jun 2019 17:35:19 +0000 (17:35 +0000)]
[dsymutil] Use the number of threads specified.

Before this patch we used either a single thread, or the number of
hardware threads available, effectively ignoring the number of threads
specified on the command line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362815 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[docs]Move llvm-readobj from "Developer Tools" to "Basic Commands"
James Henderson [Fri, 7 Jun 2019 16:43:44 +0000 (16:43 +0000)]
[docs]Move llvm-readobj from "Developer Tools" to "Basic Commands"

On the Command Guide page, there are multiple sections with links to the
different documentation pages available for LLVM tools. The "Basic
Tools" section includes tools like llvm-objdump, llvm-nm and so on. The
"Developer Tools" section contains things like FileCheck and lit. This
change moves llvm-readobj into the former block, from the latter.

Reviewed by: MaskRay

Differential Revision: https://reviews.llvm.org/D63011

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362813 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[Analysis] simplify code for getSplatValue(); NFC
Sanjay Patel [Fri, 7 Jun 2019 16:09:54 +0000 (16:09 +0000)]
[Analysis] simplify code for getSplatValue(); NFC

AFAIK, this is only currently called by TTI, but it could be
used from instcombine or CGP to help solve problems like:
https://bugs.llvm.org/show_bug.cgi?id=37428
https://bugs.llvm.org/show_bug.cgi?id=42174

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362810 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAttempt to fix nm-archive.test after r362798
Nico Weber [Fri, 7 Jun 2019 16:06:27 +0000 (16:06 +0000)]
Attempt to fix nm-archive.test after r362798

llvm-lib now needs a `target triple` for bitcode, so add a new file
that's like trivial.ll but has one, and use that in the test.
(trivial.ll had a comment that looked like it wasn't supposed to be used
in tests directly, so I don't want to change that file.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362809 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoBuild with _XOPEN_SOURCE defined on AIX
David Tenty [Fri, 7 Jun 2019 15:45:25 +0000 (15:45 +0000)]
Build with _XOPEN_SOURCE defined on AIX

Summary:
It is useful to build with _XOPEN_SOURCE defined on AIX, enabling X/Open
and POSIX compatibility mode, to work around stray macros and other
bugs in the headers provided by the system and build compiler.

This patch adds the config to cmake to build with _XOPEN_SOURCE defined
on AIX with a few exceptions. Google Test internals require access to
platform specific thread info constructs on AIX so in that case we build
with _ALL_SOURCE defined instead. Libclang also uses header which needs
_ALL_SOURCE on AIX so we leave that as is as well.

We also add building on AIX with the large file API and doing CMake
header checks with X/OPEN definitions so the results are consistent with
the environment that will be present in the build.

Reviewers: hubert.reinterpretcast, xingxue, andusy

Reviewed By: hubert.reinterpretcast

Subscribers: mgorny, jsji, cfe-commits, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D62533

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362808 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[MachineScheduler] checkResourceLimit boundary condition update
Jinsong Ji [Fri, 7 Jun 2019 14:54:47 +0000 (14:54 +0000)]
[MachineScheduler] checkResourceLimit boundary condition update

When we call checkResourceLimit in bumpCycle or bumpNode, and we
know the resource count has just reached the limit (the equations
 are equal). We should return true to mark that we are resource
limited for next schedule, or else we might continue to schedule
in favor of latency for 1 more schedule and create a schedule that
 actually overbook the resource.

When we call checkResourceLimit to estimate the resource limite before
scheduling, we don't need to return true even if the equations are
equal, as it shouldn't limit the schedule for it .

Differential Revision: https://reviews.llvm.org/D62345

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362805 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agotest-commit
Stefan Stipanovic [Fri, 7 Jun 2019 14:18:02 +0000 (14:18 +0000)]
test-commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362802 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Added tests for D63004
David Bolvansky [Fri, 7 Jun 2019 14:05:42 +0000 (14:05 +0000)]
[NFC] Added tests for D63004

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362801 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoTailDuplicator: Remove no-op analyzeBranch call
Matt Arsenault [Fri, 7 Jun 2019 13:33:34 +0000 (13:33 +0000)]
TailDuplicator: Remove no-op analyzeBranch call

This could fail, which looked concerning. However nothing was actually
using the results of this. I assume this was intended to use the
anti-feature of analyzeBranch of removing instructions, but wasn't
actually calling it with AllowModify = true.

Fixes bug 42162.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362800 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Don't export helpers of ConstantFoldCall
Joerg Sonnenberger [Fri, 7 Jun 2019 13:28:52 +0000 (13:28 +0000)]
[NFC] Don't export helpers of ConstantFoldCall

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362799 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agollvm-lib: Disallow mixing object files with different machine types
Nico Weber [Fri, 7 Jun 2019 13:24:34 +0000 (13:24 +0000)]
llvm-lib: Disallow mixing object files with different machine types

lib.exe doesn't allow creating .lib files with object files that have
differing machine types. Update llvm-lib to match.

The motivation is to make it possible to infer the machine type of a
.lib file in lld, so that it can warn when e.g. a 32-bit .lib file is
passed to a 64-bit link (PR38965).

Fixes PR38782.

Differential Revision: https://reviews.llvm.org/D62913

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362798 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[x86] narrow extract subvector of vector select
Sanjay Patel [Fri, 7 Jun 2019 13:17:46 +0000 (13:17 +0000)]
[x86] narrow extract subvector of vector select

This is a potentially large perf win for AVX1 targets because of the way we
auto-vectorize to 256-bit but then expect the backend to legalize/optimize
for the half-implemented AVX1 ISA.

On the motivating example from PR37428 (even though this patch doesn't solve
the vector shift issue):
https://bugs.llvm.org/show_bug.cgi?id=37428
...there's a 16% speedup when compiling with "-mavx" (perf tested on Haswell)
because we eliminate the remaining 256-bit vblendv ops.

I added comments on a couple of tests that require further work. If we have
256-bit logic ops separating the vselect and extract, we should probably narrow
everything to 128-bit, but that requires a larger pattern match.

Differential Revision: https://reviews.llvm.org/D62969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362797 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agogn build: Merge r362766
Nico Weber [Fri, 7 Jun 2019 13:09:40 +0000 (13:09 +0000)]
gn build: Merge r362766

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362796 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agogn build: Merge r362774
Nico Weber [Fri, 7 Jun 2019 13:08:17 +0000 (13:08 +0000)]
gn build: Merge r362774

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362795 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agogn build: Run `git ls-files '*.gn' '*.gni' | xargs llvm/utils/gn/gn.py format`
Nico Weber [Fri, 7 Jun 2019 13:07:00 +0000 (13:07 +0000)]
gn build: Run `git ls-files '*.gn' '*.gni' | xargs llvm/utils/gn/gn.py format`

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362794 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ARM] Fix bugs introduced by the fp64/d32 rework.
Simon Tatham [Fri, 7 Jun 2019 12:42:54 +0000 (12:42 +0000)]
[ARM] Fix bugs introduced by the fp64/d32 rework.

Change D60691 caused some knock-on failures that weren't caught by the
existing tests. Firstly, selecting a CPU that should have had a
restricted FPU (e.g. `-mcpu=cortex-m4`, which should have 16 d-regs
and no double precision) could give the unrestricted version, because
`ARM::getFPUFeatures` returned a list of features including subtracted
ones (here `-fp64`,`-d32`), but `ARMTargetInfo::initFeatureMap` threw
away all the ones that didn't start with `+`. Secondly, the
preprocessor macros didn't reliably match the actual compilation
settings: for example, `-mfpu=softvfp` could still set `__ARM_FP` as
if hardware FP was available, because the list of features on the cc1
command line would include things like `+vfp4`,`-vfp4d16` and clang
didn't realise that one of those cancelled out the other.

I've fixed both of these issues by rewriting `ARM::getFPUFeatures` so
that it returns a list that enables every FP-related feature
compatible with the selected FPU and disables every feature not
compatible, which is more verbose but means clang doesn't have to
understand the dependency relationships between the backend features.
Meanwhile, `ARMTargetInfo::handleTargetFeatures` is testing for all
the various forms of the FP feature names, so that it won't miss cases
where it should have set `HW_FP` to feed into feature test macros.

That in turn caused an ordering problem when handling `-mcpu=foo+bar`
together with `-mfpu=something_that_turns_off_bar`. To fix that, I've
arranged that the `+bar` suffixes on the end of `-mcpu` and `-march`
cause feature names to be put into a separate vector which is
concatenated after the output of `getFPUFeatures`.

Another side effect of all this is to fix a bug where `clang -target
armv8-eabi` by itself would fail to set `__ARM_FEATURE_FMA`, even
though `armv8` (aka Arm v8-A) implies FP-Armv8 which has FMA. That was
because `HW_FP` was being set to a value including only the `FPARMV8`
bit, but that feature test macro was testing only the `VFP4FPU` bit.
Now `HW_FP` ends up with all the bits set, so it gives the right
answer.

Changes to tests included in this patch:

* `arm-target-features.c`: I had to change basically all the expected
  results. (The Cortex-M4 test in there should function as a
  regression test for the accidental double-precision bug.)
* `arm-mfpu.c`, `armv8.1m.main.c`: switched to using `CHECK-DAG`
  everywhere so that those tests are no longer sensitive to the order
  of cc1 feature options on the command line.
* `arm-acle-6.5.c`: been updated to expect the right answer to that
  FMA test.
* `Preprocessor/arm-target-features.c`: added a regression test for
  the `mfpu=softvfp` issue.

Reviewers: SjoerdMeijer, dmgreen, ostannard, samparker, JamesNagurne

Reviewed By: ostannard

Subscribers: srhines, javed.absar, kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62998

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362791 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[RISCV] Support Bit-Preserving FP in F/D Extensions
Sam Elliott [Fri, 7 Jun 2019 12:20:14 +0000 (12:20 +0000)]
[RISCV] Support Bit-Preserving FP in F/D Extensions

Summary:
This allows some integer bitwise operations to instead be performed by
hardware fp instructions. This is correct because the RISC-V spec
requires the F and D extensions to use the IEEE-754 standard
representation, and fp register loads and stores to be bit-preserving.

This is tested against the soft-float ABI, but with hardware float
extensions enabled, so that the tests also ensure the optimisation also
fires in this case.

Reviewers: asb, luismarques

Reviewed By: asb

Subscribers: hiraditya, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62900

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362790 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AMDGPU] Constrain the AMDGPU inliner on maximum number of basic blocks in a caller...
Valery Pykhtin [Fri, 7 Jun 2019 12:16:46 +0000 (12:16 +0000)]
[AMDGPU] Constrain the AMDGPU inliner on maximum number of basic blocks in a caller function (compile time performance)

Differential revision: https://reviews.llvm.org/D62917

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362789 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoWork around a circular dependency between IR and MC introduced in r362735
Dmitri Gribenko [Fri, 7 Jun 2019 09:28:19 +0000 (09:28 +0000)]
Work around a circular dependency between IR and MC introduced in r362735

I replaced the circular library dependency with a forward declaration,
but it is only a workaround, not a real fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362782 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AArch64][AsmParser] error on unexpected SVE predicate type suffix
Cullen Rhodes [Fri, 7 Jun 2019 08:46:56 +0000 (08:46 +0000)]
[AArch64][AsmParser] error on unexpected SVE predicate type suffix

Summary:
This patch fixes a bug in the assembler that permitted a type suffix on
predicate registers when not expected. For instance, the following was
previously valid:

    faddv h0, p0.q, z1.h

This bug was present in all SVE instructions containing predicates with
no type suffix and no predication form qualifier, i.e. /z or /m. The
latter instructions are already caught with an appropiate error message
by the assembler, e.g.:

            .text
    <stdin>:1:13: error: not expecting size suffix
    cmpne p1.s, p0.b/z, z2.s, 0
                ^

A similar issue for SVE vector registers was fixed in:

  https://reviews.llvm.org/D59636

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D62942

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362780 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AArch64][AsmParser] Provide better diagnostics for SVE predicates
Cullen Rhodes [Fri, 7 Jun 2019 08:37:00 +0000 (08:37 +0000)]
[AArch64][AsmParser] Provide better diagnostics for SVE predicates

Patch by Sander de Smalen (sdesmalen)

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D62941

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362779 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objcopy] - Emit error and don't crash if program header reaches past end of...
George Rimar [Fri, 7 Jun 2019 08:34:18 +0000 (08:34 +0000)]
[llvm-objcopy] - Emit error and don't crash if program header reaches past end of file.

This is https://bugs.llvm.org/show_bug.cgi?id=42122.

If an object file has a size less than program header's file [offset + size]
(i.e. if we have overflow), llvm-objcopy crashes instead of reporting a
error.

The patch fixes this issue.

Differential revision: https://reviews.llvm.org/D62898

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362778 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[yaml2elf] - Refactoring followup for D62809
George Rimar [Fri, 7 Jun 2019 08:31:36 +0000 (08:31 +0000)]
[yaml2elf] - Refactoring followup for D62809

This is a refactoring follow-up for D62809
"Change how we handle implicit sections.".
It allows to simplify the code.

Differential revision: https://reviews.llvm.org/D62912

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362777 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[X86] -march=cooperlake (llvm)
Pengfei Wang [Fri, 7 Jun 2019 08:31:35 +0000 (08:31 +0000)]
[X86] -march=cooperlake (llvm)

Support intel -march=cooperlake in llvm

Patch by Shengchen Kan (skan)

Differential Revision: https://reviews.llvm.org/D62836

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362776 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoFix for lld buildbot
Sam Parker [Fri, 7 Jun 2019 08:04:18 +0000 (08:04 +0000)]
Fix for lld buildbot

Removed unused (in non-debug builds) variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362775 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[CodeGen] Generic Hardware Loop Support
Sam Parker [Fri, 7 Jun 2019 07:35:30 +0000 (07:35 +0000)]
[CodeGen] Generic Hardware Loop Support

Patch which introduces a target-independent framework for generating
hardware loops at the IR level. Most of the code has been taken from
PowerPC CTRLoops and PowerPC has been ported over to use this generic
pass. The target dependent parts have been moved into
TargetTransformInfo, via isHardwareLoopProfitable, with
HardwareLoopInfo introduced to transfer information from the backend.

Three generic intrinsics have been introduced:
- void @llvm.set_loop_iterations
  Takes as a single operand, the number of iterations to be executed.
- i1 @llvm.loop_decrement(anyint)
  Takes the maximum number of elements processed in an iteration of
  the loop body and subtracts this from the total count. Returns
  false when the loop should exit.
- anyint @llvm.loop_decrement_reg(anyint, anyint)
  Takes the number of elements remaining to be processed as well as
  the maximum numbe of elements processed in an iteration of the loop
  body. Returns the updated number of elements remaining.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362774 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AVR] Expand 16-bit rotations during the legalization stage
Dylan McKay [Fri, 7 Jun 2019 06:55:00 +0000 (06:55 +0000)]
[AVR] Expand 16-bit rotations during the legalization stage

In r356860, the legalization logic for BSWAP was modified to ISD::ROTL,
rather than the old ISD::{SHL, SRL, OR} nodes.

This works fine on AVR for 8-bit rotations, but 16-bit rotations are
currently unimplemented - they always trigger an assertion error in the
AVRExpandPseudoInsts pass ("RORW unimplemented").

This patch instructions the legalizer to expand 16-bit rotations into
the previous SHL, SRL, OR pattern it did previously.

This fixes the 'issue-cannot-select-bswap.ll' test. Interestingly, this
test failure seems flaky - it passes successfully on the avr-build-01
buildbot, but fails locally on my Arch Linux install.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362773 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Delete trailing whitespace character.
Michael Pozulp [Fri, 7 Jun 2019 06:28:43 +0000 (06:28 +0000)]
[NFC] Delete trailing whitespace character.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362772 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objdump] Print source when subsequent lines in the translation unit come from...
Michael Pozulp [Fri, 7 Jun 2019 06:23:54 +0000 (06:23 +0000)]
[llvm-objdump] Print source when subsequent lines in the translation unit come from the same line in two different headers.

Reviewers: grimar, rupprecht, jhenderson

Reviewed By: grimar, jhenderson

Subscribers: llvm-commits, jhenderson

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62461

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362771 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol
Michael Pozulp [Fri, 7 Jun 2019 05:11:13 +0000 (05:11 +0000)]
[llvm-objdump] Add warning if --disassemble-functions specifies an unknown symbol

Summary: Fixes Bug 41904 https://bugs.llvm.org/show_bug.cgi?id=41904

Reviewers: jhenderson, rupprecht, grimar, MaskRay

Reviewed By: jhenderson, rupprecht, MaskRay

Subscribers: dexonsmith, rupprecht, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62275

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362768 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[MC][ELF] Don't create relocations with section symbols for STB_LOCAL ifunc
Fangrui Song [Fri, 7 Jun 2019 03:47:22 +0000 (03:47 +0000)]
[MC][ELF] Don't create relocations with section symbols for STB_LOCAL ifunc

We should keep the symbol type (STT_GNU_IFUNC) for a local ifunc because
it may result in an IRELATIVE reloc that the dynamic loader will use to
resolve the address at startup time.

There is another problem that is not fixed by this patch: a PC relative
relocation should also create a relocation with the ifunc symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362767 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[ADT] Enable set_difference() to be used on StringSet
Michael Pozulp [Fri, 7 Jun 2019 03:23:00 +0000 (03:23 +0000)]
[ADT] Enable set_difference() to be used on StringSet

Subscribers: mgorny, mgrang, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62992

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362766 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Test commit.
Michael Pozulp [Fri, 7 Jun 2019 01:55:59 +0000 (01:55 +0000)]
[NFC] Test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362763 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[LV] Fix -Wunused-function after r362736
Fangrui Song [Fri, 7 Jun 2019 01:48:26 +0000 (01:48 +0000)]
[LV] Fix -Wunused-function after r362736

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362762 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAMDGPU: Don't count mask branch pseudo towards skip threshold
Matt Arsenault [Fri, 7 Jun 2019 00:14:55 +0000 (00:14 +0000)]
AMDGPU: Don't count mask branch pseudo towards skip threshold

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362761 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAMDGPU: Insert skips for blocks with FLAT
Matt Arsenault [Fri, 7 Jun 2019 00:14:45 +0000 (00:14 +0000)]
AMDGPU: Insert skips for blocks with FLAT

This already forced a skip for VMEM, so it should also be done for
flat. I'm somewhat skeptical about the benefit of this though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362760 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[PowerPC] Exploit the vector min/max instructions
Nemanja Ivanovic [Thu, 6 Jun 2019 23:49:01 +0000 (23:49 +0000)]
[PowerPC] Exploit the vector min/max instructions

Use the PPC vector min/max instructions for computing the corresponding
operation as these should be faster than the compare/select sequences
we currently emit.

Differential revision: https://reviews.llvm.org/D47332

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362759 91177308-0d34-0410-b5e6-96231b3b80d8

4 years agoAMDGPU: Insert skip branches over return blocks
Matt Arsenault [Thu, 6 Jun 2019 22:51:51 +0000 (22:51 +0000)]
AMDGPU: Insert skip branches over return blocks

SIInsertSkips really doesn't understand the control flow, and makes
very stupid assumptions about the block layout. This was able to get
away with not skipping return blocks, since usually after
structurization there is only one placed at the end of the
function. Tail duplication can break this assumption.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362754 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC] Test commit, whitespace change
David Tenty [Thu, 6 Jun 2019 22:07:14 +0000 (22:07 +0000)]
[NFC] Test commit, whitespace change

As per the Developer Policy, upon obtaining commit access.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362753 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC][CodeGen] Add unary fneg tests to X86/fma4-intrinsics-x86.ll
Cameron McInally [Thu, 6 Jun 2019 21:49:59 +0000 (21:49 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma4-intrinsics-x86.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362752 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DebugInfo] Incorrect debug info record generated for loop counter.
Alexey Lapshin [Thu, 6 Jun 2019 21:19:39 +0000 (21:19 +0000)]
[DebugInfo] Incorrect debug info record generated for loop counter.

Incorrect Debug Variable Range was calculated while "COMPUTING LIVE DEBUG VARIABLES" stage.
Range for Debug Variable("i") computed according to current state of instructions
inside of basic block. But Register Allocator creates new instructions which were not taken
into account when Live Debug Variables computed. In the result DBG_VALUE instruction for
the "i" variable was put after these newly inserted instructions. This is incorrect.
Debug Value for the loop counter should be inserted before any loop instruction.

Differential Revision: https://reviews.llvm.org/D62650

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362750 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AMDGPU] Partial revert for the ba447bae7448435c9986eece0811da1423972fdd
Alexander Timofeev [Thu, 6 Jun 2019 21:13:02 +0000 (21:13 +0000)]
[AMDGPU] Partial revert for the ba447bae7448435c9986eece0811da1423972fdd

   "Divergence driven ISel. Assign register class for cross block values
       according to the divergence."
       that discovered the design flaw leading to several issues that
       required to be solved before.

       This change reverts AMDGPU specific changes and keeps common part
       unaffected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362749 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC][CodeGen] Add unary fneg tests to X86/fma-intrinsics-x86.ll
Cameron McInally [Thu, 6 Jun 2019 21:12:22 +0000 (21:12 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma-intrinsics-x86.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362748 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[X86] Make a bunch of merge masked binops commutable for loading folding.
Craig Topper [Thu, 6 Jun 2019 21:00:04 +0000 (21:00 +0000)]
[X86] Make a bunch of merge masked binops commutable for loading folding.

This primarily affects add/fadd/mul/fmul/and/or/xor/pmuludq/pmuldq/max/min/fmaxc/fminc/pmaddwd/pavg.

We already commuted the unmasked and zero masked versions.

I've added 512-bit stack folding tests for most of the instructions
affected. I've tested needing commuting and not commuting across
unmasked, merged masked, and zero masked. The 128/256 bit instructions
should behave similarly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362746 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[InstSimplify] add tests for fcmp with known-never-nan operands; NFC
Sanjay Patel [Thu, 6 Jun 2019 20:14:06 +0000 (20:14 +0000)]
[InstSimplify] add tests for fcmp with known-never-nan operands; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362742 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC][CodeGen] Add unary fneg tests to X86/fma-scalar-combine.ll
Cameron McInally [Thu, 6 Jun 2019 20:11:30 +0000 (20:11 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma-scalar-combine.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362741 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[CFLGraph] Add support for unary fneg instruction.
Craig Topper [Thu, 6 Jun 2019 19:21:23 +0000 (19:21 +0000)]
[CFLGraph] Add support for unary fneg instruction.

Differential Revision: https://reviews.llvm.org/D62791

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362737 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[LV] Wrap LV illegality reporting in a function. NFC.
Renato Golin [Thu, 6 Jun 2019 19:15:52 +0000 (19:15 +0000)]
[LV] Wrap LV illegality reporting in a function. NFC.

A function for loop vectorization illegality reporting has been
introduced:

void LoopVectorizationLegality::reportVectorizationFailure(
    const StringRef DebugMsg, const StringRef OREMsg,
    const StringRef ORETag, Instruction * const I) const;

The function prints a debug message when the debug for the compilation
unit is enabled as well as invokes the optimization report emitter to
generate a message with a specified tag. The function doesn't cover any
complicated logic when a custom lambda should be passed to the emitter,
only generating a message with a tag is supported.

The function always prints the instruction `I` after the debug message
whenever the instruction is specified, otherwise the debug message
ends with a dot: 'LV: Not vectorizing: Disabled/already vectorized.'

Patch by Pavel Samolysov <samolisov@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362736 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[AIX] Implement function descriptor on SDAG
Jason Liu [Thu, 6 Jun 2019 19:13:36 +0000 (19:13 +0000)]
[AIX] Implement function descriptor on SDAG

Summary:
(1) Function descriptor on AIX
On AIX, a called routine may have 2 distinct symbols associated with it:
 * A function descriptor (Name)
 * A function entry point (.Name)

The descriptor structure on AIX is the same as those in the ELF V1 ABI:
 * The address of the entry point of the function.
 * The TOC base address for the function.
 * The environment pointer.

The descriptor symbol uses the same name as the source level function in C.
The function entry point is analogous to the symbol we would generate for a
 function in a non-descriptor-based ABI, except that it is renamed by
prepending a ".".

Which symbol gets referenced depends on the context:
 * Taking the address of the function references the descriptor symbol.
 * Calling the function references the entry point symbol.

(2) Speaking of implementation on AIX, for direct function call target, we
 create proper MCSymbol SDNode(e.g . ".foo") while constructing SDAG to
 replace original TargetGlobalAddress SDNode. Then down the path, we can
 take advantage of this MCSymbol.

Patch by: Xiangling_L

Reviewed by: sfertile, hubert.reinterpretcast, jasonliu, syzaara

Differential Revision: https://reviews.llvm.org/D62532

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362735 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC][CodeGen] Add unary fneg tests to X86/fma4-fneg-combine.ll
Cameron McInally [Thu, 6 Jun 2019 19:02:46 +0000 (19:02 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma4-fneg-combine.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362733 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[InlineCost] Add support for unary fneg.
Craig Topper [Thu, 6 Jun 2019 19:02:18 +0000 (19:02 +0000)]
[InlineCost] Add support for unary fneg.

This adds support for unary fneg based on the implementation of BinaryOperator without the soft float FP cost.

Previously we would just delegate to visitUnaryInstruction. I think the only real change is that we will pass the FastMath flags to SimplifyFNeg now.

Differential Revision: https://reviews.llvm.org/D62699

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362732 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[NFC][CodeGen] Add unary fneg tests to X86/fma_patterns.ll
Cameron McInally [Thu, 6 Jun 2019 18:41:18 +0000 (18:41 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma_patterns.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362730 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[LoopPred] Fix a bug in unconditional latch bailout introduced in r362284
Philip Reames [Thu, 6 Jun 2019 18:02:36 +0000 (18:02 +0000)]
[LoopPred] Fix a bug in unconditional latch bailout introduced in r362284

This is a really silly bug that even a simple test w/an unconditional latch would have caught.  I tried to guard against the case, but put it in the wrong if check.  Oops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362727 91177308-0d34-0410-b5e6-96231b3b80d8

4 years ago[DAGCombine] MergeConsecutiveStores - improve non-temporal load\store handling (PR42123)
Simon Pilgrim [Thu, 6 Jun 2019 17:04:13 +0000 (17:04 +0000)]
[DAGCombine] MergeConsecutiveStores - improve non-temporal load\store handling (PR42123)

This patch is the first step towards ensuring MergeConsecutiveStores correctly handles non-temporal loads\stores:

1 - When merging load\stores we must ensure that they all have the same non-temporal flag. This is unlikely to occur, but can in strange cases where we're storing at the end of one page and the beginning of another.

2 - The merged load\store node must retain the non-temporal flag.

Differential Revision: https://reviews.llvm.org/D62910

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362723 91177308-0d34-0410-b5e6-96231b3b80d8